endian.c

/* ieee-utils/endian.c * * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2007 Brian Gough * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or (at * your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */#include <config.h>#include <stdlib.h>#include <gsl/gsl_ieee_utils.h>staticint little_endian_p (void) ;
staticint
little_endian_p (void) {
/* Are we little or big endian? From Harbison & Steele. */union
{
long l;
char c[sizeof (long)];
} u;
u.l = 1;
return (u.c[sizeof (long) - 1] == 1);
}